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150030031 is a prime number
BaseRepresentation
bin10001111000101…
…00011011001111
3101110022022111211
420330110123033
5301401430111
622515355251
73501143224
oct1074243317
9343268454
10150030031
1177762868
12422b2b27
132510c788
1415cd594b
15d288521
hex8f146cf

150030031 has 2 divisors, whose sum is σ = 150030032. Its totient is φ = 150030030.

The previous prime is 150030017. The next prime is 150030043. The reversal of 150030031 is 130030051.

It is a strong prime.

It is an emirp because it is prime and its reverse (130030051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-150030031 is a prime.

It is a super-2 number, since 2×1500300312 = 45018020403721922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 150029993 and 150030020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150030011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75015015 + 75015016.

It is an arithmetic number, because the mean of its divisors is an integer number (75015016).

Almost surely, 2150030031 is an apocalyptic number.

150030031 is a deficient number, since it is larger than the sum of its proper divisors (1).

150030031 is an equidigital number, since it uses as much as digits as its factorization.

150030031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 150030031 is about 12248.6746629993. The cubic root of 150030031 is about 531.3647407802.

Adding to 150030031 its reverse (130030051), we get a palindrome (280060082).

The spelling of 150030031 in words is "one hundred fifty million, thirty thousand, thirty-one".